Sole-edge-burnishing machine



' (No Model.)

. W. GORDON.

SOLE EDGE BURNISHING MACHINE. w NO. 297,930. Patented Apr. 29, 1884;

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UNITED STATES PATENT OFFICE.

WILLIAM GORDON, OF BOSTON, ASSIGNO R -OF ONE-HALF TO J. W'ESLEY DODGE, OF MALDEN, MASSACHUSETTS.

SOLE-EDGE-BURNI SHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 297,930, dated April 29, 1884-.

Application filed January 28, 1884. (No model.)

To all whom it may concern Be it known that I, WILLIAM GORDON, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain Improve ments in Sole-Edge-Burnishing Machines, of which the following is a specification.

This invention relates to sole-edge setting or burnishing machines in which the burnishingtool is reciprocated, and is presented to the sole-edge by the hand of the operator, the boot or shoe being supported by a suitable jack.

The invention has for its object, first, to provide improved means for supporting the reciprocating tool or tools when they are not in use, and for imparting to the tool or tools a yielding movement, whereby they are enabled to bear with a yielding pressure on the soleedge.

The invention has for its object, secondly, to provide improved means for supporting the stock which holds the tool or tools and the mechanism that reciprocates them.

To these ends my invention consists in the improvements hereinafter set forth and claimed.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of an edge setting or burnishing machine embodying my invention, showing the swinging frame which supports the burnishing devices. Figs. 2 and-3' represent, respectively, an enlarged side elevation and an enlarged front elevation of the'machine without the swinging frame. Fig. 4 represents a section on line m, Fig. 2.

The same letters of reference same parts in all the figures.

In carrying out my invention I employ a stock, a, supporting the burnishing tool or tools hereinafter described, and suspended by 40 a rod, 1), from a frame, 0 which is pivoted to swing vertically, and thus allow the stock to rise and fall, the rod b being pivoted to the frame 0, so as to oscillate about its pivot, and thus allow the stock to move backward and forward, as in other machines of this class. The stock a is composed of a handle portion or bar, 2, adapted to be grasped by the operator, and an arched portion, 3, containing segmental guides for slides 4 4, each of which indicate the is a segment of a circle having the same radius as the guide in which it moves. In the upper end of the stock a is journaled a transverse arbor, (I, having a pulley, e, and two eccentrics or crank portions, f f, which are connected by rods or pitmen g g with the slides 4 4, and when the arbor d is rotateditreciprocates said slides in curved paths, the eccentrics being so arranged that the slides move simultaneously in opposite directions, the movement of each slide neutralizing the jar caused by the movement of the other, so that the operators hand experiences no tremor or jar. in holding the stock. To the lower ends of the slides 4 4 are applied burnishing-tools 5 5, having circular shanks, which are swiveled in socketed bosses formed on the slides 4, and are adapted to move up and down as well as to partially rotate in said sockets. Each slide has a spring, 2', bearing downwardly on the upper end of the shank of its burnishing- 7o tool, and enabling the tool to bear with a yielding pressure on a sole-edge. The shank of each tool is recessed at j, (see Fig. 4,) and into said recess projects the end of a light spring, secured to the slide. The office of the spring is is to support the tool and prevent r it from dropping from its socket when not in use, said spring being adapted to bev readily withdrawn from the recess)- to release the tool whenever it is desirable to remove the-same. One of the burnishing-tools is formed to burnish the shank-edge, and the'other the soleedge, the shank-tool projecting below the soleedgetool, as shown. The upper portion of the stock has an arched crossbar, k, extending. over the pulley e, and composed of two parts, between which is clamped an elastic metal plate, Z, which is provided at its upper end with a rigid socket, m, in which isswiveled the lower end of the supporting-rod b, above referred to. The elastic plate I is arranged edgewise to the line of movement of the rod 1) as it swings on' the pivot connecting it with the frame a, so that the plate will not yield or bend in the direction of said movement, but is free to bend or spring in a direction transverse thereto. The plate Z, therefore, permits the operator to incline the stock laterally, as indicated by dotted lines in Fig. 3. The platel affording this freedom of lateral movement enables the burnishing-tool to readily reach all the upward and downward curves of the sole and shank edge, and also enables the acting face of the burnishing-tool to conform to any variation in the inclination of the sole-edge caused by imperfect trimming or otherwise. The freedom of lateral movement afforded by the plate I also enables the operator to more readily control the tool-holding stock when the tool is acting upon the toe portion of the sole-edge, and prevents the tool from being thrown off from the sole-edge at said portion.

The frame 0 is pivoted on a driving-shaft,p, and is provided with a counterbalancingweight at its rear end. The forward end of the frame 0 has an arbor, g, which serves as the pivot for the rod 1), and has two pulleys, a 1", one of which is connected by a belt, 8, with a pulley, t, on the driving-shaft, and the other by a belt, a, with the pulley c on the arbor of the stock a. The arched cross-bar 7a of the stock is provided with two guides, v 1:, through which the belt a passes, and is kept thereby from being displaced when the stock is moved laterally by the springing or fiexure of the plate Z.

The rod b is provided above the socket m with a collar, 10, between which and the socket is interposed a spring, 3 having sufficient stress to exert a downward yielding pressure on the stock a, and thus supplement the springs 'i, which bear directly on the shanks of the burnishing-tools. The rod 12 has ahead or shoulder, below the socket m, which supports said socket and the stock and the mechanism carried thereby, when the socket is not raised above said shoulder by the bearing of a burnishing-tool 011 a sole-edge. I

I do not claim the stock with its handle, segmental slides, and mechanism for moving said slides.

It is obvious that my improvements hereinafter claimed are applicable to a stock having one slide and tool, or more than one, by omitting one of the tools, or the tool and connections for driving the same.

I claim 1. In a sole-edge-burnishing machine, the combination of the slide 4 and its operating devices, the burnishing-tool having a recessed shank adapted to rise and fall in said slide, and a spring, is, secured to the slide and projecting at its free end into the recess in the tool-shank, as set forth.

2. In a sole-edge-burnishing machine, the combination of the slide 4 and its operating devices, the burnishing-tool having a recessed shank adapted to rise and fall in said slide, a spring, 1', bearing on the upper end of the toolshank, and a spring, k, projecting at its free end into the recess in the tool-shank, as set forth.

3. In a sole-edge-burnishing machine, the combination of the movable stock having a burnishing tool or tools, and operating mechanism therefor, substantially as described, the pivoted rod 1), supporting said stock, and the laterally-yielding or elastic plate connecting the stock to the rod, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this th day of January, 1884.

VILLIAM GORDON.

Vitnesses:

O. F. BROWN, A. L. WHITE. 

